些細・瑣細|ささいsasai[1]atamadaka (head-high)

Common
Which spelling to use
些細些細 is the most common written form; beginners should normally choose it when writing this word.
瑣細瑣細 is a rarely used kanji variant of 些細, so learners will seldom need to use it.
Definitions
  1. na-adjectivetrivial; trifling; slight; insignificant
    そんなささいなことで私を悩なやまさないでくれ。↗
    Don't bother me with such trifles.
Conjugation
Plain form些細(ささい)
Polite (desu)些細です(ささいです)
Negative (dewa nai)些細ではない(ささいではない)
polite (dewa arimasen)些細ではありません(ささいではありません)
Past (datta)些細だった(ささいだった)
Past negative (dewa nakatta)些細ではなかった(ささいではなかった)
Te form (de)些細で(ささいで)
Adverbial (ni)些細に(ささいに)
Conditional (nara)些細なら(ささいなら)

Common forms generated by rule; see the senses for honorific or irregular usage.

Synonyms & antonyms
  • SynonymつまらないCasualColloquial. Focuses on being dull and uninteresting, though it can also mean not worth mentioning; 「些細」 simply says a matter is minor.
  • Synonym瑣末さまつWrittenWritten/formal prose. Points to petty details, as in 「瑣末な問題」; close in meaning to 「些細」, used mainly in written style.
  • SynonymくだらないCasualColloquial. Adds contempt for something worthless or absurd; 「些細」 merely states that a matter is small.
  • Synonym軽微けいびNeutralNeutral. Describes slight damage or injuries, as in 「軽微な被害」; leans toward news-report language.
  • SynonymたわいないNeutralNeutral. Suggests something childish and inconsequential, as in 「たわいない話」; stresses innocence and harmlessness rather than smallness.
  • Synonym取るに足らないとるにたらないNeutralNeutral set phrase meaning not worth mentioning; stresses that something need not be taken up or attended to.
  • Synonym取るに足りないとるにたりないNeutralA variant of 「取るに足らない」 with the same meaning, fine in speech or writing; versus 「些細」 it stresses more strongly that something is not worth attention.
  • Related無意味むいみNeutralNeutral. Means utterly meaningless or wasted; stresses that something serves no purpose.
  • RelatedわずかNeutralNeutral. Says an amount or degree is very small; stresses quantity, not importance.
  • RelatedしがないNeutralNeutral. Describes humble, inconspicuous things, mostly someone's status or occupation, as in 「しがない会社員」.
  • Related卑小ひしょうWrittenWritten/formal prose. Means lowly and petty; a written word carrying a derogatory nuance.
  • Related無意義むいぎWrittenWritten/formal prose. Says something has no meaning; a written word focused on lack of value.
  • Related甲斐無いかいないWrittenWritten/formal prose. Covers futile, ineffective things and also the not-worth-mentioning sense, still current, often as 「甲斐がない」; 「些細」 only says a matter is small.
  • Antonym重大じゅうだいNeutralAntonym. Means major or serious; the opposite of insignificant 「些細」.
  • Antonym重要じゅうようNeutralAntonym. Means important or essential; the opposite of 「些細」, which suggests something carries no weight.

Use 「些細」 for unimportant little things, as in 「些細なことで喧嘩する」. 「瑣末」 is a written-style alternative; call something boring 「つまらない」; describe slight damage with 「軽微」. For contempt, 「下らない」; for not worth mentioning, 「取るに足らない」; for tiny amounts, 「僅か」. The antonym is 「重大」.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

Japanese definitions
  1. 取とるに足たらないさま。ちっぽけなさま。とりたてて問題もんだいにならないさま。
Kanji in this word
English equivalents
See also

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